| Value |
Category |
| -95 |
|
| -90 |
Not specified by supervisor/interviewer |
| 1993 |
|
| 1995 |
|
| 1997 |
|
| 2006 |
|
| 2007 |
|
| 2010 |
|
| 2012 |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.